Didier Drogba has also been struggling with malaria, but after undergoing surgery in Qatar last month the striker says he is now fully fit.

"I've worked hard to regain my form and get to a good level for the training camp," Drogba said in a news conference of his work over the last week in Dallas, where the Elephants have been preparing for the World Cup.

Drogba is expected to win his 100th cap for Ivory Coast on against Bosnia.

Toure's younger brother Yaya, meanwhile, is due to join up with the Ivory Coast squad on Saturday following surgery on a muscle injury in Qatar.

"We expect him back on the pitch," Dah said of the Manchester City midfielder.

Ivory Coast play a second friendly against El Salvador on Wednesday, before arriving in Brazil next Friday.

The Elephants have been drawn in Group C alongside Colombia, Greece and Japan.